Improvement in the manufacture of fifth-wheels for carriages



D. WILGOX.

Manufacture of Fifth Wheels for Carriages, &c.

Patented March 25, I873.

AM PHomumLvsRAPn/v 0a MK (ossamvsb P900556) UNITED ATENT QFFICE DARIUSWILCOX, OF DERBY, CONNECTICUT.

IMPROVEMENT IN THE MANUFACTURE OF FlFTH WHEELS FOR CARRIAGES, &C.

Specification forming part of Letters Patent No. 137,274, dated March25, 1873.

To all whom it may concern:

Be it known that I, DARIUS WILooX, of Derby, in the county of New Havenand State of Connecticut, have invented an Improvement in theManufacture of Clip-Heads for Fifth-Wheels of Vehicles, of which thefollowing is a specification Nature and Objects of the Invention.

Description of the Drawing.

Figure 1 is a perspective view of the lower one of a pair of dies,illustrating the invention. Fig.2 is a vertical section of the pair ofdies containing a finished clip-head. The plane of the section isrepresented by the line 2, Fig. 1. Fig. 3 is a perspective View of aclip-head as taken from the dies.

General Description.

In carrying out this invention a pair of steel dies, A B, areconstructed with matrical cavities a b in their faces, correspondingwith the outlines of the fiat faces or'sides of the clip head C which isto be produced, as illustrated in Fig. 1, so that the piece shall bestruck edgewise. The form of the respective sides of the clip-head maybe alike, and the cavities are of equal depth, and jointly equal to thethickness of the clip-head, less the usual provision for fins, :c. Thefins are thus formed along the difierent parts of the clip-head in asingle central plane, as illustrated in Fig. 3, so as to leave the outeredges and angles full and clean, and to facilitate removing the fins.The numbers 1 2 3 4 5 indicate the matchingpoints of the clip-head anddies. The blanks for use with these dies are cut or swaged of the samegeneral outline as the finished cliphead, and with a small surplus ofmetal. A blank is placed over the cavity of the lower die, and the upperdie applied. The whole is then placed under a f trip-hammer, ordrop-hammerfor in a press, and subjected to one or more blows, or to therequisite pressure, when the clip-head, finished to the extentillustrated in Fig. 3, is removed, and another blank introduced. Theclip-heads are subsequently cleaned of their fins and welded to the endsof traverse-bars, to form the lower members of fifth-wheels, which maybe completed in usual manner. Uniform and perfect clip-heads for the usespecified are thus readily manufactured at a reduced cost over theinferior article heretofore produced by drawing out each member of theclip separately.

It is known that other articles have been struck edgewise in dies, andthis feature of the invention is not therefore broadly claimed.

Claim.

, The following is claimed as new Dies A B, constructed with cavities ofthe forms herein specified, for forming clip-heads for fifth-wheels ofvehicles, in the manner and for the purposes set forth.

DARIUS WILCOX.

Witnesses:

W. S. BROWNE, Guns. E. CLARK.

